# US 11,122,651 B2 · Airflow heating assembly having a heating device and a container

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- Number: US 11,122,651 B2
- Document ID: US11122651B2
- Status: Granted
- Kind: B2
- Application number: 16/089,950
- Filed: 2017-04-28
- Published: 2020-10-01
- Granted: 2021-09-14
- Earliest claimed: 2016-05-27
- Assignees: Smiss Technology Co., Ltd.
- Applicants: Smiss Technology Co., Ltd.
- Inventors: Jiatai Chen; Shikai Chen
- Web page: https://patentgrep.com/patent/US11122651B2

## CPC

- H05B 3/46: heating conductor mounted on insulating base
- A24F 40/42: Cartridges or containers for inhalable precursors
- A24F 40/46: Shape or structure of electric heating means
- A24F 40/48: Fluid transfer means, e.g. pumps
- A24F 40/485: Valves; Apertures
- A24F 40/50: Control or monitoring
- A24F 40/57: Temperature control
- H05B 1/0297: {Heating of fluids for non specified applications}
- H05B 3/48: heating conductor embedded in insulating material
- A24F 40/20: Devices using solid inhalable precursors
- H05B 2203/022: Heaters specially adapted for heating gaseous material
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06)

## Abstract

An airflow heating assembly, including a heating device (10) and a container (20), the heating device (10) being used for heating through-flowing air to produce a hot airflow, the container (20) being used for accommodating a raw material. The container (20) is arranged above the heating device (10), and a bottom portion of the container (20) is provided with air holes for maintaining airflow communication with the heating device (10). The heating device (10) includes an outer heating pipe (1) and an inner heating rod (2), the inner heating rod (2) is arranged in an inner cavity of the outer heating pipe (1), and an airflow heating space is formed between an outer wall of the inner heating rod (2) and an inner wall of the outer heating pipe (1).

## Claims

### Claim 1

An airflow heating assembly, comprising a heating device and a container, wherein the heating device is configured to heat air flowing there through to generate a hot airflow; the container is configured to receive a raw material; wherein the container is located above the heating device, the container defines a vent at a bottom thereof in communication with the heating device, and an inner wall of the container is sector-shaped with a larger upper portion and a smaller lower portion; the heating device comprises an outer heating pipe and an inner heating rod located in an inner cavity of the outer heating pipe, and a heating space is formed between an outer wall of the inner heating rod and an inner wall of the outer heating pipe; the air entering from a bottom portion of the heating device is heated in the heating space via the outer heating pipe and the inner heating rod to generate the hot airflow, and the hot airflow rises into the container and heat the raw material in the container.

### Claim 2 (depends on 1)

The airflow heating assembly according to claim 1, wherein the container is detachably connected to the heating device.

### Claim 3 (depends on 1)

The airflow heating assembly according to claim 1, wherein the raw material is a tobacco, a fragrance, or an herb.